What does it mean when we say “Ohms can Lie”? It’s more of a colloquial expression suggesting that relying on static resistance may not give you enough information about how some components behave when energized. For example, when you measure the resistance of a component, and its “opposition to current flow” varies when subjected to […]
This page serves as a quick reference for Field Technicians when measuring electrolytic capacitor Equivalent Series Resistance (ESR) when using the Atlas ESR 70 meter. For electrolytic capacitors there are typical ESR values associated with particular capacitances. When measuring ESR in the field, this helpful reference table will facilitate easy lookup so that you can […]
Important Note Never attempt to repair circuit boards in appliances or HVAC systems unless you are directly supervised by a licensed professional engineer and doing so under approved ISO and UL processes. Anatomy of a Control Board In this article, I’ll do a detailed walkthrough of a common refrigerator control board – the WR55x10942, go […]
Schematic walkthrough of a Whirlpool gas dryer in all modes and failures. Educational tool for Appliance Technicians.